Safety window chair



Ma 6, 1924. w d

F. ADLER SAFETY WINDOW CHAIR Filed Nov. 6. 19'12 2 Sheets-Sheet 1 INVENTOR ATf'oRNEY May a, 1924. 11,492,948

F. ADLER SAFETY WINDOW CHAIR Filed NOV- 6, 1922 2 Sheets-Sheet. 2

Patented Mar 6. 1924.

UNITED slT-z,

SAFETY WINDOW CHAIR.

Application filed November 6, 1922. 'SeriaIN'o. 595,353.

To all whom it mag concern:

Be it known that I, FRANK ADLER, citizen of Russia, and resident of Brooklyn, in the county of Kings and State of New York,

.have invented certain new and'useful Improvements in Safety Window Chairs, of

which the following is a specification.

This invention relates to im rovements in window chairs, brackets or acks, such as may be temporarily attached to the walls of a windowor like opening andextended outwardly therefrom to safely support an individual performing duties exterior of the window.

One of the objects is to provide a device which is readily adjustable to .windows of varying widths and in such manner as to avoid abrasion of the window sash, frame or wall of the building.

Another purpose is to produce a strong but light device for the purpose, which can be readily applied or removed WlllllOllt tools of any sort or extraneous fastening means of any kind, and, when not in use is capable of being compactly folded for storage and transportation.

These and other corresponding aims,.becoming apparent as the description proceeds, are accomplished by the novel design, construction and arrangement of parts hcre.- after described and shown in-the drawings relating thereto, and in which Figure 1 is a general perspective view showing an embodiment ofthe invention, extended in operative position and illustrating its application.

Fi ire 2 is a plan view of the same lookin'g rom the'top.

igure 3, is a transverse sectional view taken on line 3-3 of Figure 2.

Fi ure 4: is a similar view ofthe same but:

showing the parts of the device in a close folded position.

Figure 5 is an enlarged fragmentary view of one of the inner adjustable support bars and its associated elements, parts being broken away to show the construction.

Figure '6 is a partial, side and sectional view of the adjustable back support and allied parts, these sections being taken on line 66 of Figure 7 Figure 7 is a partial front and sectional view of the same. I

mad

' i 8 is a fra'gmentary view of the pan and the means for supporting it, the section being taken on line 8-8 on Fig. 2.

As shown in the drawings, the wall of a building is designated by the numeral 15, the same having a window opening 16, an extendingsill 17 and frame 18, in which glazed sashes 19 are operatively mounted, the construction being purely conventional in type.

forming no part of the invention.

A platform or seat 20, preferably made of sheet metal having down turned flanges 21 and 22, respectively, at its sides'andrear, is similarly flanged at the front, this flange 23 extending the full width of the platform and formed to present a concaveouter face,

the lower portion of the flange being bent to producea parallel ledge 24.

A U shaped elongated clip 25 having a thickened front 26, is secured by rivets to the upper surfaceof the platform and the ledge 24, there being a substantially circular opening between the clip and flange in which are slidably received stout tubes 27, held when in adjustment by set screws'28.

Secured to theouter ends of the tubes 27 are cylindrical buffers 29 and midway in the length of the tubes are secured rigid brackets 30 having extending stems, alsoencircled with cushion buffers 31 adapted to rest against the window frame centering the de-- vice and preventing it from moving laterally, while the ends of the tubes 27 engage the window frame sides adjacent to their inner surfaces to prevent outward movement of the platform, the bufiers obviating any damage tot-he parts against which contact is A channel iron 32 is secured to extend transversely across the front end of the platform at its lower side and carried by the channel isa cushion 33 suited to rest upon the window sill.

The side flanges 21 are folded upward closely upon themselves, as at 34, and formed with lugs. 35 carrying a rod 36 acting as a pivot for a pair of support bars 37 arranged on the outer surface of the sides of the platform and bent at their lower ends 38 to extend towards the window but considerably below it. 1

Mounted in these ends is a rod 39 encased in a rubber tube or roller 40 suited to rest rigid ins 43 are fixed, the same engaging in any 0 the several notches 44: formed in arcuate levers 45. v

Said levers are pivoted at 46 to the sides of the platform 20 at points near the channel 32, and connected at their free ends by a transverse bar d7 having bent ends riveted to the ends of the bars 45.

In order to maintain the notches let in itive engagement with the fixed pins 43, keeper slides 48 are provided to extend over the upper edges of the bars 45, said slides being housed in brackets 49 fixed to a backing plate 50 the same being flanged on each of its four edges and extending between the box elements 42 from side to side of the structure and raised from the platform as shown, there being openings 51 in the back ing plate thr-ou h which angular projections 52,'formed wit slides 48 extend for convenience in actuating the keepers, ail these several parts being carried by the bars 37.

Centrally in the platform 30 is a longi tudinal opening 53 having downturned flanged 1 edges utilized, in addition to strengthening the plateto carry pivots 54 hingedly engaging a plate 55 also having down turned edges and resting on an abutment 56 formed with the corresponding edge of the platform.

Formed in the plate 55 is an opening 57, its surrounding edges being folded closely to present smooth surfaces to as a handle by which the device may be carried and by which the device may be placed into or removed from the window opening, an additional raised handle 58 being secured permanently to the platform near its curved outer edge 22.

When the structure is folded into the position indicated in Figure 4, a latch 59, pivoted to one of the flanged edges of the platform, may be engaged in a slot 60 in the upper end of the adjacent box-like element 42, thus holding the device in closed or folded position. i

In operation, the hook or catch 59 is disengaged, the platform and its rear attachments passed through the open window until the buffers 29 onthe extended rods-make contact with the inner sides of the window frame, the brackets 31 being adjusted to touch the sides of the frame below the sash and the set screws 28 tightened to prevent further movement of the bars.

In that position the cushion 33 rests upon the window sill and the roller 40 adjusted to engage the outside wall of the building, this bein accomplished by grasping the plate 55 y the hand hole 57 raising the eas es plate into contact with the backing 50, turnthey are positively held by the detent slides a8, thus aifordinga secure and safe structure for the purposes set forth. In addition a an 61 may be attached to the'platform si es for convenience in carryin articles used by the operator, by means of tongues 62 fitting within the clip 63 fastened to the flan-"e 21.

t) viously to remove the device from the window opening it is but necessary to grasp with one hand the plate 55 by the hand hold 57 and raise it until it has reached the position shown in dot and dash lines in Fig. 3 which will be the angular direction of the pull or application of power from the shoulder of the operator, and to grasp with the other hand the front of the platform 26. This of course obviates the necessity of the operator leaning out of the window to lift in the device and thus eliminates the possibility of accident.

However as changes of construction could be made within the scope of the invention, it is intended that all matter contained in the foregoing description or shown in the drawings shall be regarded as illustrative rather than in a limitin sense.

Having thus describe my invention, what I claim as new and desire to secure by Letters Patent, is

1. A window chair comprising a sheet metal platform having flanged edges, alined bars carried telescopically at the front of said platform adapted to engage the walls of the window frame on each side thereof when extended, means carried by said bars for centering said platform relative to the window opening, a pair of lever arms pivoted to the platform, a roller carried by said arms to make contact with the wall below the window opening to support the outer end of said platform, means for maintaining said arms in adjustment, and a backing for said platform carried by said arms above the pivot.

.2. A window chair comprising a sheet metal platform, means for anchoring said platform to the frame of a window, means for locating the platfor m relative to the window opening, arms at the side of the platform intermediate their ends, the greater length of the arms being below the pivots, a roller carried at their lower ends, a backing at their upper ends, curved levers pivoted ti) the sides of said platform, said levers having teeth in their concave surfaces, pins carried by said arms, engagea'ble in said teetlnand means for,c onfining the pins when adjusted between saidgteeth,

zlstal platform having flanged edges, means earned. V

for mljustably engaging said platform to a Signed at New York in the county of New 10 window frame, adjustable supports at the York and State of New York this 1st day 5 sides of the platform, a'plat'e pivoted to cover of November A. D. 1922.

an opanin in said platform, said plate haw ing a M11319 opening, and a handle fixed to FRANK ADLER';

'3. A window. chair comprising a sheet said platform by either of which'it'may be 

